## Proportions

Proportions
• Currently 4.0/5 Stars.
11446 views, 3 ratings - 00:08:08
Part of video series Proportions
Taught by muchomath

### Meets NCTM Standards:

Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.
Learn what a proportion is, how to set one up, and a couple of methods of solving proportions.

• What is a proportion?
• How do you set up a proportion?
• How do you solve a proportion?
• What are some different methods for solving a proportion?
• What is cross multiplication?
• How do you solve x/6 = 2/3?
• How do you solve x/6 = 2/3 + 3/4?
• What is the clearing fractions technique?
• Is there an easy way to solve proportions?
• How do you solve x/4 = 5/6?
• How do you solve x/6 = 2/(3/4)?
• How do you solve 2x/5 = 0.3/4?
• How do you solve 1.2x/0.7 = 0.04/0.3?
• How can you clear decimals from the beginning of a problem?
• How do you solve 12x/7 = 4/30?
This video shows a couple of different methods for solving proportions. Many different example problems are shown, and some get complicated with complex fractions and decimals included. This is a great introduction to solving proportions.
• Currently 4.0/5 Stars.
Reviewed by MathVids Staff on November 22, 2009.  